【摘要】 在笔者提出的轧机辊系微尺度行为可控理论框架下,经过对2200mm铝箔中轧机工作辊轴向力进行大量的在线测试,开发研制了2200mm铝箔中轧机微尺度可控辊系。该辊系具有工作辊和支承辊平行度调节、工作辊轴承座和机架窗口间安装间隙的控制、工作辊辊系空间自位、轴向力可视检测及热补偿等性能。在800～1550m/min不同轧制速度下的工业试验结果表明,通过微量调整工作辊相对支承辊的交叉角可以改变作用于工作辊的轴向力大小,甚至改变其作用方向,将轴向力控制在轴承寿命允许限度之内;显著增加工作辊轴承座固有频率以改善其振动特性,证实了微尺度可控辊系理论框架的正确性,为根治长期困扰2200mm铝箔中轧机工作辊止推轴承(双列角接触球轴承)短寿烧损和轧机被迫降速运行的病状奠定了理论基础。更多还原

【Abstract】 Based on many live online tests about the work roll axial force status of2200mm aluminium foil mill,under the guide of the mill roll system micro dimensional controllable theory brought out by the authors,the2200mm aluminium foil mill micro dimensional controllable roll system has been developed.The roll system has some special functions,such as to adjust the depth of parallelism between the work roll and the back-up roll,to control the gap between the chock and the stand,to keep the work roll system self-align,to test the axial force visually,and to reduce the effect of the thermal deformation.The result of industry test under the roll speed arrange from800to1500m/min shows that the micro content adjustment of the cross angle between the work roll and the back-up roll can change the magnitude of the work roll axial force and even the direction of it,and control the axial force under the limit for the bearing longevity.And the micro dimensional controllable roll system increases the work roll natural frequency significantly.All these shows the accuracy of the micro dimensional controllable roll system theory and establishes the theoretical basis for resolving the problem that the2200mm aluminium foil mill bearing(double rows angular contact ball bearing)always burns and the mill is forced to run at a low speed level.更多还原